Originally Posted by
ethernal
The max limit per the FAA is 100W, Delta's are rated for 75W but really they will run up to 90W without too much issue. Laptop transformers can handle a little voltage drop at the higher end of the wattage pull without issue.
That said, on the chargers it's the opposite of what you said... virtually no laptop has a 90-135W charger these days unless you're talking about a gaming laptop or an analytics/developer laptop workstation. I can't think of a single business oriented laptop that is above 65W. Laptops are such power sippers nowadays that they never really draw above 30W on their own (typically 5-7 watts when not under super high load, 2-5 watts when idle almost all going to power the screen), and their batteries are typically 40-60Wh. So 65W is enough to both power the laptop under load and charge the battery from empty in 90 minutes or less (assuming no trickle charging at the top end which there would be).
The chromebooks and small PC's don't use much but I think you're very wrong about PC's in general. I have one client who's finance and accounting department uses high end Dell 17" notebooks which they do take on the road since they use them every place and those are 135W. I have 8 notebooks that I use which vary in age from 2011 to 2022 models and only 1 is under 65W. Every one from 2015 and newer is an Intel I7 and they draw power.
You don't have to be a developer to need large screens, high storage capacity (just about every machine my clients get now has 2TB) and run demanding database and financial models.
While most of the PC use I see on-board is email and some web browsing, I see more and more people doing 'real' work.